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slamgirl [31]
3 years ago
5

Which 300 this way < or this way >

Chemistry
1 answer:
Mademuasel [1]3 years ago
5 0

Answer:

c

Explanation:

that's the direction the truck is moving

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Sound is an example of<br><br> kinetic energy<br> potential energy
motikmotik
Answer-kinetic energy. The human experience of sound is caused by vibrations. The object creating the sound creates waves of movement through a medium, like air, until it reaches our eardrums, which then vibrate and our brain interprets that as sound. Here are some examples of sound energy:

7 0
3 years ago
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What is electron configuration of a Mn atom in the ground state
alexira [117]
Answer (AR)
Explanation: mn has an atomic number of 25 . Simplify use this information to obtain its electronic configuration . MN 1s2 2s2 2p6 3s2 3p6 4s2 3d5
5 0
3 years ago
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Using the Br?nsted-Lowry concept of acids and bases, identify the Br?nsted-Lowry acid and base in each of the following reaction
antiseptic1488 [7]

Answer:

H_2PO_3^- is Bronsted Lowry base.

H_2O is Bronsted Lowry acid.

Explanation:

According to the Bronsted Lowry conjugate acid-base theory:

  • An acid is defined as a substance which donates protons and form conjugate base
  • A base is defined as a substance which accepts protons and forms conjugate acid.

H_2PO_3^-(aq)+H2O(l)\rightarrow H_3PO_3(aq)+OH^-(aq)

H_2PO_3^- is Bronsted Lowry base.It accepts protons and forms conjugate acid H_3PO_3

H_2O is Bronsted Lowry acid.It donates protons and forms conjugate base OH^-

(CH_3)_2NH(g)+BF_3(g)\rightarrow (CH_3)_2NHBF_3(s)

There in no exchange of proton in an above reaction.Neither of the reactants and products are Bronsted Lowry acid or Bronsted Lowry base

5 0
3 years ago
One mole of an ideal gas is expanded from a volume of 1.00 liter to a volume of 8.00 liters against a constant external pressure
Leya [2.2K]

Answer : The work done on the surroundings is, 709.1 Joules.

Explanation :

The formula used for isothermally irreversible expansion is :

w=-p_{ext}dV\\\\w=-p_{ext}(V_2-V_1)

where,

w = work done

p_{ext} = external pressure = 1.00 atm

V_1 = initial volume of gas = 1.00 L

V_2 = final volume of gas = 8.00 L

Now put all the given values in the above formula, we get :

w=-p_{ext}(V_2-V_1)

w=-(1.00atm)\times (8.00-1.00)L

w=-7L.atm=-7\times 101.3J=-709.1J

The work done by the system on the surroundings are, 709.1 Joules. In this, the negative sign indicates the work is done by the system on the surroundings.

Therefore, the work done on the surroundings is, 709.1 Joules.

4 0
3 years ago
Solutions that are very concentrated have greater freezing point depression Group of answer choices true or false
Tamiku [17]

Answer:

Explanation:

False. The greater the concentration, the lower the freezing point.

8 0
3 years ago
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